Is professional teeth whitening more effective than over-the-counter teeth whitening?

Typically, yes. Professional teeth whitening products contain a higher concentration of the whitening agent than over-the-counter whitening treatments, which allows for better whitening in a shorter amount of time. Additionally, professional kits are customized and use trays that are created to fit your mouth exactly. This means you get better coverage on your teeth while avoiding whitening product coming into contact with sensitive tissues like your lips and gums. Many professional whitening products also contain a desensitizing agent so that even patients with sensitive teeth can leave the product on for the recommended amount of time without pain.